A Study of the Effect of Dexamethasone on Duration of Upper Extremity Blocks With Bupivacaine

Brief Summary

Effect of dexamethasone on prolonging upper extremity block is well known. But it not known if the effect comes from its local effect on the nerves or from its general analgesic effect. In this study we will compare the systemic effect to its local effect to find out if there is a difference or not.